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re: Meopta Meostar R1 3-10x50 vs. Leupold 3.5–10x40mm
Posted on 12/27/15 at 2:35 pm to Citica8
Posted on 12/27/15 at 2:35 pm to Citica8
quote:
You will get better low light performance at higher magnification with the Meopta due to its 50mm objective, than you will with the 40mm in the Leupold, due to the optics exit pupil which allows a certain amount of light transmission as your pupils dilate under low light.
Exit pupil is part of the equation. If the two instruments have the same glass quality, the one with the larger exit pupil will have a precieved brightness better that the one with he smaller exit pupil.
The most important thing to know in my opinion is what spectrum of light is the manufacturer in question coating for.
Light transmission numbers are useless unless you know what spectrum of light is being measured.
2
Posted on 12/27/15 at 2:41 pm to igchris
quote:
The most important thing to know in my opinion is what spectrum of light is the manufacturer in question coating for.
Light transmission numbers are useless unless you know what spectrum of light is being measured.
bingo. if only everyone knew this
Posted on 12/27/15 at 3:11 pm to igchris
Igchris,
Reading the below statement on the Leopold, can you break it down in laymen terms?
"The Xtended Twilight Lens System places extra emphasis on matching coatings to glass indices to achieve the best possible transmission of the blue/violet spectrum, without sacrificing the color balanced light transmission across the visual spectrum of the Index Matched Lens System"
I recall a post by you in the where you said Leopold coats their glass for the spectrum of light, 570-590nm which is yellow red light. Meopta coats for 380-570nm (blue green spectrum). Does that hold true with the Leopold description above?
TIA
Reading the below statement on the Leopold, can you break it down in laymen terms?
"The Xtended Twilight Lens System places extra emphasis on matching coatings to glass indices to achieve the best possible transmission of the blue/violet spectrum, without sacrificing the color balanced light transmission across the visual spectrum of the Index Matched Lens System"
I recall a post by you in the where you said Leopold coats their glass for the spectrum of light, 570-590nm which is yellow red light. Meopta coats for 380-570nm (blue green spectrum). Does that hold true with the Leopold description above?
TIA
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